Clamp for saw machines and the like



Jan. 19, 1932. c, KGETs fifiii g z CLAMP FOR SAW MACHINES AND THE LIKE Filed 2. 1, 1950 a I [IVVENTOR Camel/Us K0612;

A TTORNE Y5 Patented Jan. 19, 1932 CORNELIUS KOETS, OF KALAMAZOO, MICLIGAN, BSSIGNQE T HAIL IMGND MACHINERY BUILDERS, 0F KALAMAZOO, MICHIGAN. A. CUBPGEATIOIQ' OI MICHIGAN CLALIP FOR SAV] Iv'IACHINES AND THE LIKE Application filed August 1, 1930. Serial No. 472,475.

I have illustrated and described my improvements as I have embodied the same in a clamp for linotype trim saws. My improvements, however, are adapted for use in other relations.

The main object of my invention is to provide a clamp which may be very quickly and easily adjusted to work of varying sizes, which is powerful, and at the same time may be easily adjusted to clamping position or to release the work.

Further objects pertaining to details of operation and construction will appear from the description to follow. A. structure embodying the features of my invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a plan view of a saw machine of a linotype embodying the features of my invention.

Fig. 2 is a fragmentary view mainly in section on line 22 of Fig. 1.

Fig. 3 is an enlarged detail section on line 33 of Figs. 1 and 2.

Fig. 4 is an enlarged detail section on line 4l4= of Fig. 2.

In the accompanying drawings 1 represents the table of the machine and 2 the saw. The slide 3 is mounted on the table in operative relation to the saw. This slide is provided with an abutment t having a gage 5 thereon, the gage illustrated being provided with adjusting means of the type shown in the patent to Runnels No. 1,582,307. The bar-like jaw 6 is slidingly mounted on the member 3, the jaw supports being shown at 7 and 8. A downwardly facing rack bar 9 is mounted on these supports in parallel relation to the jaw 6.

A handle 10 is rotatably mounted in the head block or gear box 11 which is pivoted at 12 on the jaw. The handle is provided with a hand piece 13 at its outer end and with a worm 1 arranged in the head block and meshing with worm car 15 rotatable in the head block. This gear 15 has a pinion 16 secured thereto to rotate therewith, the pinion being eccentrically mounted on the head block so that by tilting the head block the pinion is engaged with and disengaged from the rack. The jaw 6 is provided with a stop 17 limiting the upper swing of the handle.

Witli the parts thus arran ed when the handle is'swung upwardly to the position shown by dotted lines in Fig. 2, the pinion is disengaged from the rack and the jaw 6 maybe "freely adjusted to and from the abutment member. When it is brought into engagement or approximate engagement with the work, the handle is swung down to the position shown by full lines in Fig. 3, in which position the pinion 16 meshes with the rack and by rotating the handle the clamping jaw is forced against the work, and owing to the gean connection a very substantial clampmg action results with comparatively little effort on the part of the operator. V

A further advantage is that owing to this arrangement of worm gear the jaw is automatically locked in its adjusted position. The weight of the handle tends to keep the parts in mesh with the rack so that there is little danger of its being accidentally disengaged although it may be easily disengaged by an upward pull on the handle even when the aw is in clamping position.

I have illustrated and described my improvements in a very practical embodiment. l have not illustrated certain embodiments or adaptations as it is believed this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

Having thus described my invention, what 1 claim as new and desire to secure by Letters Patent is: i 1. in a clamp, the combination with a bed provided with an abutment, of a slidinglymounted jaw operatively associated therewith, a downwardly-facing rack mounted in parallel relation to the path of said jaw, a head block pivotally mounted on the said aw, a worm gear mounted on said head block, a pmion mounted on said gear to rotate therewith, said pinion being eccentrically arranged relative to the head block pivot so that it is engaged with and disengaged from the rack by the tilting of the head block, a handle for tilting said head block and manipulating said gear rotatably mounted thereon, and a worm on said handle coacting with said worm gear.

2. In a structure of the class described,the combination of a slidably mounted jaw, a rack operatively associated with said jaw, a head block pivotally mounted on said jaw, a lever rotatively mounted on said head block, a pinion eccentrically mounted on said head block to be engaged with and disengaged from said rack by the tilting of the head block, a gear on said lever, and a coacting gear carried by said head block and connected to said pinion, said lever gear meshing with said pinion gear.

3. In a clamp, the combination with a bed provided with an abutment, of a coacting slidably-mounted jaw, a rack operatively associated with said jaw, a head block pivotally mounted on the said jaw, a handle for tilting said head block rotatively mounted thereon, a worm on the said handle, and a worm gear mounted on said head block and provided with a pinion coacting with said rack and adapted to be engaged and disengaged by the tilting of the head block by the manipulation of said handle.

4. In a structure of the class described, the combination of a. slidably-mounted jaw, a rack mounted in parallel relation to the path of said jaw, a handle pivotally connected to said jaw, a worm on said handle, and a gear meshing with said worm and provided with a pinion coacting with said rack and adapted to be engaged therewith and disengaged therefrom by the swinging of the lever.

'5. In a structure of the class described, the combination of a slidably-mounted jaw, a rack mounted in parallel relation to the path of said jaw, a handle pivotally connected to said jaw, a pinion mounted eccentrically relative to the handle pivot to be engaged with and disengaged from said rack by swinging the handle, a gear on said handle, and a ooacting gear connected to said pinion and meshing with said handle gear.

In witness whereof I have hereunto set my hand.

CORNELIUS KOETS. 

